Tiffany & Co. New York 18k Gold Hardware Ball Chain NecklaceThis Tiffany & Co. HardWear ball pendant necklace is crafted in solid 18k yellow gold. The spherical pendant is engraved Tiffany & Co. New York around the top and stamped Au750 on the bottom. Measuring approximately 1 inch in length and 3 4 inch in width, the pendant is suspended from an 18k gold chain, also stamped Tiffany & Co. Au750. The chain features an adjustable design, ranging from 36 inches to 40 1 4 inches in length, and is finished with a